Edge type determines the intensity of forest edge effect on epiphytic communities

Aragón, Gregorio; Abuja, Laura; Belinchón, Rocío; Martínez, Isabel

doi:10.1007/s10342-015-0863-5

Cited by 48 publications

(46 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Our network predictions found that composition of the surrounding matrix of modified habitats influenced the trajectories of community composition within fragments, in line with previous studies that found matrix composition influences the tree species being recruited inside forest fragments (Nascimento et al , Chabrerie et al , Benitez‐Malvido et al , Aragon et al ) and on the composition of fragment communities more widely (Brudvig et al in press). On average, matrix type exerted a slightly higher influence than distance to edge and fragment size (Fig.…”

Section: Discussionsupporting

confidence: 91%

“…However, the same pattern was also predicted for convergence to Cecropia, with plots surrounded by Vismia converging towards the Cecropia centroid and those surrounded by Cecropia diverging away (F 2,31  25.8, p  0.001). Both models had a significant interaction between matrix type and distance to -Malvido et al 2014, Aragon et al 2015 and on the composition of fragment communities more widely (Brudvig et al 2017). On average, matrix type exerted a slightly higher influence than distance to edge and fragment size (Fig.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Predicted trajectories of tree community change in Amazonian rainforest fragments

et al. 2016

View full text Add to dashboard Cite

A great challenge for ecologists is predicting how communities in fragmented tropical landscapes will change in the future. Available evidence suggests that fragmented tropical tree communities are progressing along a trajectory of ‘retrogressive succession’, in which the community shifts towards an early or mid-successional state that will persist indefinitely. Here, we investigate the potential endpoint of retrogressive succession, examining whether it will eventually lead to the highly depauperate communities that characterise recently abandoned agricultural lands. We tested this hypothesis by using neural networks to construct an empirical model of Amazonian rainforest-tree-community responses to experimental habitat fragmentation. The strongest predictor of tree-community composition in the future was its composition in the present, modified by variables like the composition of the surrounding habitat matrix and distance to forest edge. We extrapolated network predictions over a 100 yr period and quantified trajectories of forest communities in multidimensional ordination space. We found no evidence that forest communities, including those near forest edges, were converging strongly towards a composition dominated by just one or two early successional genera. Retrogressive succession may well be stronger in fragmented landscapes altered by chronic disturbances, such as edge-related fires, selective logging, or intense windstorms, but in this experimental landscape in which other human disturbances are very limited, it is unlikely that forest edge communities will fully revert to the species poor assemblages observed in very early successional landscapes

show abstract

Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Predicted trajectories of tree community change in Amazonian rainforest fragments

et al. 2016

View full text Add to dashboard Cite

show abstract

“…De acordo com Laurence et al (2011), a vegetação natural no entorno de um fragmento tem o potencial de selar as diferenças ambientais, diminuindo, assim, o efeito de borda. Já no sítio Cravina tal evidência não foi verificada, corroborando Aragón et al (2015) quando mencionam que diferentes tipos de matrizes têm efeitos distintos no microclima e vão ao encontro à hipótese de que a magnitude dos efeitos de borda depende do contraste entre a fisionomia da matriz e do fragmento florestal. Um fragmento circundado por uma matriz diferente da original pode eliminar espécies e isolar comunidades, e o sucesso de colonização em áreas adjacentes pode ser limitado pelo fato de o habitat não ser mais propício para o desenvolvimento de samambaias.…”

Section: Os Resultados Sustentam Que O Interior Do Macacounclassified

“…Assim, a magnitude dos efeitos de borda depende do contraste entre a fisionomia da matriz e do fragmento florestal (ARAGÓN et al, 2015). A qualidade da matriz usualmente aumenta quando a sua estrutura é mais similar com a do habitat que está isolado (PREVEDELLO & VIEIRA, 2010).…”

Section: Introductionunclassified

Impacto do efeito de borda sobre a comunidade de samambaias epifíticas em floresta com araucária

Silva

Mallmann

Cunha

et al. 2017

Rev. Bras. Ciênc. Ambient. (Online)

View full text Add to dashboard Cite

“…; Aragon et al . ). However, similar results of no effects of edge contrast on edge influence have been previously found for air temperature, canopy cover and vegetation height in the cerrado (Dodonov et al .…”

Section: Discussionmentioning

confidence: 97%

Edge influence on plant litter biomass in forest and savanna in the Brazilian cerrado

et al. 2016

View full text Add to dashboard Cite

Edge influence, characterized by differences in ecosystem characteristics between the edge and the interior of remnants in fragmented landscapes, affects a variety of organisms and ecosystem processes. An important feature that may be affected by edges is the amount of plant litter, which provides important habitat for a large variety of organisms and influences ecological processes such as fire dynamics. We studied edge influence on plant litter and fine woody debris in the cerrado of São Paulo state, south-eastern Brazil. We collected, sorted, dried and weighed plant litter along 180 m-long transects perpendicular to three savanna and eleven forest edges adjacent to different anthropogenic land uses, with four to five transect per edge. There tended to be less biomass of the finer portions of fine woody debris at both savanna and forest edges. Graminoid litter at savanna edges was greater than in the corresponding interior areas, whereas other litter portions were either unaffected by edges or did not show consistent patterns in either savanna or forest. Edge influence was usually restricted to the first 20 m from the edge, was not influenced by edge characteristics and exhibited no clear differences between savanna and forest areas. Several mechanisms may have led to the variable patterns observed including variation in the plant community, plant architecture, and invasive species. The edge-related variation in plant litter may putatively lead to, for example, increased fire frequency and intensity at the savanna edges and altered trophic dynamics at forest edges; the mechanisms and consequences of this edge influence should be addressed in future studies.

show abstract

Edge type determines the intensity of forest edge effect on epiphytic communities

Cited by 48 publications

References 42 publications

Predicted trajectories of tree community change in Amazonian rainforest fragments

Predicted trajectories of tree community change in Amazonian rainforest fragments

Impacto do efeito de borda sobre a comunidade de samambaias epifíticas em floresta com araucária

Edge influence on plant litter biomass in forest and savanna in the Brazilian cerrado

Contact Info

Product

Resources

About